body {
    font-family: Arial, sans-serif;
    background-color: #f9f9f9;
    margin: 0;
    padding: 20px;
}

.container {
    max-width: 1000px; /* Increased for wider tables */
    margin: auto;
    padding: 20px;
    background: white;
    border-radius: 8px;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
}

h1, h2 {
    text-align: center;
    color: #333;
}

input[type="number"], select {
    width: 100%;
    padding: 10px;
    margin: 10px 0;
    border: 1px solid #ccc;
    border-radius: 4px;
}

button, a.button {
    display: inline-block;
    width: 100%;
    padding: 10px;
    background-color: #007BFF;
    color: white;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    text-align: center;
    text-decoration: none;
}

button:hover, a.button:hover {
    background-color: #0056b3;
}

.product-table {
    width: 100%;
    border-collapse: collapse;
    margin: 20px 0;
}

.product-table th, .product-table td {
    padding: 12px;
    border: 1px solid #ddd;
    text-align: left; /* Changed for better readability */
}

.product-table th {
    background-color: #007BFF;
    color: white;
}

.product-table tr:nth-child(even) {
    background-color: #f2f2f2; /* Zebra striping */
}

.product-table tr:hover {
    background-color: #e9ecef; /* Hover effect */
}

ul {
    list-style-type: none;
    padding: 0;
}

li {
    padding: 10px 0;
    border-bottom: 1px solid #ddd;
    text-align: center;
}

.error {
    color: red;
    text-align: center;
}